Patents by Inventor Jen-Chieh Hu

Jen-Chieh Hu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210233488
    Abstract: A driving circuit for driving a display panel is provided. The driving circuit includes a source driver. The source driver is configured to be controlled by a timing controller. The source driver is configured to adjust at least one of an operation frequency and a receiving bandwidth of a source driving circuit of the source driver when at least one of the timing controller and the source driver detects that an interference event occurs.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Chin-Hung Hsu
  • Patent number: 11017740
    Abstract: A timing controller and an anti-interference method thereof are provided. The timing controller includes a timing control circuit. The timing control circuit provides an input signal for controlling a source driver. When at least one of the timing control circuit and the source driver detects that an interference event occurs to the input signal, the timing control circuit is configured to adjust a frequency of a data signal or a clock signal from a normal operation frequency to at least one anti-interference frequency. The timing control signal is further configured to provide at least one of the data signal and the clock signal to the source driver.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: May 25, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Chin-Hung Hsu
  • Patent number: 10762873
    Abstract: A driving circuit and an anti-interference method thereof are provided. The driving circuit includes a source driver. The source driver is configured to be controlled by a timing controller. The source driver is configured to adjust at least one of an operation frequency and a receiving bandwidth of a source driving circuit of the source driver when at least one of the timing controller and the source driver detects that an interference event occurs.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 1, 2020
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Chin-Hung Hsu
  • Publication number: 20200258472
    Abstract: A timing controller and an anti-interference method thereof are provided. The timing controller includes a timing control circuit. The timing control circuit provides an input signal for controlling a source driver. When at least one of the timing control circuit and the source driver detects that an interference event occurs to the input signal, the timing control circuit is configured to adjust a frequency of a data signal or a clock signal from a normal operation frequency to at least one anti-interference frequency. The timing control signal is further configured to provide at least one of the data signal and the clock signal to the source driver.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Chin-Hung Hsu
  • Publication number: 20200013343
    Abstract: The invention provides a display panel driving apparatus and a driving method thereof. The display panel driving apparatus includes a source driver circuit and a timing controller circuit. The source driver circuit loads data to data lines of the display panel in load data periods. The timing controller circuit controls the source driver circuit for dynamically configuring a time length of one of the load data periods according to whether charge sharing occurs. When a charge sharing operation is not performed on at least two of the data lines in the load data period, the load data period has a first time length. When the charge sharing operation is performed on at least two of the data lines in the load data period, the load data period has a second time length longer than the first time length.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 9, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Pang-Jen Chiang, Jen-Chieh Hu, Chin-Hung Hsu
  • Publication number: 20190237042
    Abstract: A driving circuit and an anti-interference method thereof are provided. The driving circuit includes a source driver. The source driver is configured to be controlled by a timing controller. The source driver is configured to adjust at least one of an operation frequency and a receiving bandwidth of a source driving circuit of the source driver when at least one of the timing controller and the source driver detects that an interference event occurs.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Applicant: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Chin-Hung Hsu
  • Patent number: 9847053
    Abstract: A display apparatus, a gate driver and an operation method thereof are provided. The gate driver includes a first input buffer and a gate line driving circuit. An input terminal of the first input buffer is configured to receive a timing control signal from the outside of the gate driver. The gate line driving circuit is coupled to an output terminal of the first input buffer. The gate line driving circuit is configured to scan a plurality of gate lines of the display panel based on the control of the timing control signal. An output impedance of the first input buffer is correspondingly adjusted according to the coupling noise of the gate driver.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: December 19, 2017
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jen-Chieh Hu, Jung-Chieh Cheng
  • Publication number: 20170229055
    Abstract: A display apparatus, a gate driver and an operation method thereof are provided. The gate driver includes a first input buffer and a gate line driving circuit. An input terminal of the first input buffer is configured to receive a timing control signal from the outside of the gate driver. The gate line driving circuit is coupled to an output terminal of the first input buffer. The gate line driving circuit is configured to scan a plurality of gate lines of the display panel based on the control of the timing control signal. An output impedance of the first input buffer is correspondingly adjusted according to the coupling noise of the gate driver.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 10, 2017
    Inventors: Jen-Chieh Hu, Jung-Chieh Cheng
  • Patent number: 9449568
    Abstract: A liquid crystal display (LCD) monitor including an LCD display panel for displaying a frame, a timing controller for generating a polarity control signal and a latch signal, and a driving circuit including a plurality of source drivers, each of the plurality of source drivers including a comparison unit for comparing a common electrode voltage with a first and a second reference voltages to generate a comparison result, an enabling unit for generating an enabling signal according to the comparison result, a source driving signal and a reset signal, a horizontal dot inversion control unit for generating a horizontal dot inversion control signal according to the enabling signal, and a polarity control unit for generating a polarity inversion control signal and the reset signal according to the enabling signal, the polarity control signal and the latch signal.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: September 20, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventor: Jen-Chieh Hu
  • Patent number: 9384704
    Abstract: A liquid crystal display and a gate driver thereof are disclosed. The gate driver comprises a first output unit, a second output unit, a first counter, a second counter and a multiplex unit. The first counter counts a clock to control the first output unit to output odd gate driving signals according to a first start signal and a polarity signal. The second counter counts the clock to control the second output unit to output even gate driving signals according to a second start signal and the polarity signal. The multiplex unit selectively outputs the polarity signal to the first counter or the second counter.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: July 5, 2016
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventor: Jen-Chieh Hu
  • Publication number: 20150042549
    Abstract: A liquid crystal display and a gate driver thereof are disclosed. The gate driver comprises a first output unit, a second output unit, a first counter, a second counter and a multiplex unit. The first counter counts a clock to control the first output unit to output odd gate driving signals according to a first start signal and a polarity signal. The second counter counts the clock to control the second output unit to output even gate driving signals according to a second start signal and the polarity signal. The multiplex unit selectively outputs the polarity signal to the first counter or the second counter.
    Type: Application
    Filed: April 11, 2014
    Publication date: February 12, 2015
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Jen-Chieh HU
  • Publication number: 20140375620
    Abstract: A display apparatus and a source driver thereof are disclosed. The source driver includes a temperature sensor and a power switch. The temperature sensor is configured to measure a first working temperature of the source driver, and generate an over-temperature protection enable signal by comparing the first working temperature with a preset temperature. The power switch is coupled to a power transmission path for a core circuit of the source driver to receive an operating power, and configured to turn on or cut off the power transmission path according to the over-temperature protection enable signal.
    Type: Application
    Filed: October 16, 2013
    Publication date: December 25, 2014
    Applicant: Novatek Microelectronics Corp.
    Inventors: Cheng-Hung Chen, Jen-Chieh Hu, Ju-Lin Huang, Yi-Chuan Liu, Jhih-Siou Cheng
  • Publication number: 20140132580
    Abstract: A liquid crystal display (LCD) monitor including an LCD display panel for displaying a frame, a timing controller for generating a polarity control signal and a latch signal, and a driving circuit including a plurality of source drivers, each of the plurality of source drivers including a comparison unit for comparing a common electrode voltage with a first and a second reference voltages to generate a comparison result, an enabling unit for generating an enabling signal according to the comparison result, a source driving signal and a reset signal, a horizontal dot inversion control unit for generating a horizontal dot inversion control signal according to the enabling signal, and a polarity control unit for generating a polarity inversion control signal and the reset signal according to the enabling signal, the polarity control signal and the latch signal.
    Type: Application
    Filed: April 16, 2013
    Publication date: May 15, 2014
    Applicant: NOVATEK Microelectronics Corp.
    Inventor: Jen-Chieh Hu
  • Publication number: 20100013413
    Abstract: A light emitting device capable of decreasing manufacturing cost includes a power generator for generating a first DC power, a first DC controller for generating a control signal, a DC-DC transformer coupled to the power generator and the DC control unit, for transforming the first DC power into a second DC power according to the control signal, a plurality of LED loads each including a plurality of LED sequences coupled to the DC-DC transformer, for emitting light according to the second DC power, and a plurality of LED drivers coupled to the plurality of LED loads, for adjusting output currents of the LED sequences to achieve constant output currents.
    Type: Application
    Filed: December 1, 2008
    Publication date: January 21, 2010
    Inventors: Jen-Chieh Hu, Wei-Ta Chiu
  • Publication number: 20090231253
    Abstract: An LCD includes a display panel, a power supply, a source driver, and a gate driver. The source driver includes a hysteresis comparator and a level translator. The hysteresis comparator compares a supply voltage provided by the power supply with a reference voltage. The level translator is coupled to an output end of the hysteresis comparator for generating a control signal. The gate driver turns on a plurality of scan line of the display panel according to the control signal.
    Type: Application
    Filed: May 23, 2008
    Publication date: September 17, 2009
    Inventor: Jen-Chieh Hu